Ken-ichi Hayashi

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Patents Grantslast 30 patents

Information Patent Grant
Marking method and marking apparatus using multiple photon absorpti...
- Patent number 6,969,820
- Issue date Nov 29, 2005
- Sumitomo Heavy Industries, Ltd.
- Ken-ichi Hayashi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Marking method and marking apparatus using multiple photon absorpti...
- Patent number 6,869,749
- Issue date Mar 22, 2005
- Sumitomo Heavy Industries, Ltd.
- Ken-ichi Hayashi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Marking method and marking apparatus using multiple photon absorpti...
- Patent number 6,621,041
- Issue date Sep 16, 2003
- Sumitomo Heavy Industries, Ltd.
- Ken-ichi Hayashi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Marking method and marking apparatus using multiple photon absorpti...
- Publication number 20050073748
- Publication date Apr 7, 2005
- Sumitomo Heavy Industries, Ltd.
- Ken-ichi Hayashi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Marking method and marking apparatus using multiple photon absorpti...
- Publication number 20050016973
- Publication date Jan 27, 2005
- Sumitomo Heavy Industries, Ltd.
- Ken-ichi Hayashi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Marking method and marking apparatus using multiple photon absorpti...
- Publication number 20040104205
- Publication date Jun 3, 2004
- Sumitomo Heavy Industries, Ltd.
- Ken-ichi Hayashi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Marking method and marking apparatus using multiple photon absorpti...
- Publication number 20020041323
- Publication date Apr 11, 2002
- Sumitomo Heavy Industries, Ltd.
- Ken-ichi Hayashi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS